./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:23:26,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:23:26,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:23:26,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:23:26,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:23:26,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:23:26,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:23:26,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:23:26,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:23:26,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:23:26,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:23:26,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:23:26,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:23:26,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:23:26,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:23:26,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:23:26,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:23:26,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:23:26,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:23:26,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:23:26,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:23:26,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:23:26,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:23:26,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:23:26,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:23:26,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:23:26,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:23:26,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:23:26,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:23:26,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:23:26,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:23:26,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:23:26,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:23:26,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:23:26,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:23:26,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:23:26,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:23:26,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:23:26,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:23:26,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:23:26,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:23:26,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 11:23:26,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:23:26,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:23:26,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:23:26,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:23:26,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:23:26,219 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:23:26,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:23:26,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:23:26,220 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:23:26,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:23:26,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:23:26,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:23:26,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:23:26,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:23:26,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:23:26,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:23:26,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:23:26,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:23:26,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:23:26,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:23:26,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:23:26,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:23:26,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:23:26,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:23:26,222 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd [2022-12-13 11:23:26,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:23:26,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:23:26,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:23:26,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:23:26,428 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:23:26,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-12-13 11:23:29,041 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:23:29,230 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:23:29,230 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-12-13 11:23:29,237 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data/f1be1eb2e/d0f94bb03fa541b5b3a4ecbf4a45f908/FLAG520b60526 [2022-12-13 11:23:29,247 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data/f1be1eb2e/d0f94bb03fa541b5b3a4ecbf4a45f908 [2022-12-13 11:23:29,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:23:29,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:23:29,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:23:29,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:23:29,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:23:29,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3c7a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29, skipping insertion in model container [2022-12-13 11:23:29,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:23:29,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:23:29,381 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-12-13 11:23:29,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:23:29,474 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:23:29,482 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-12-13 11:23:29,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:23:29,545 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:23:29,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29 WrapperNode [2022-12-13 11:23:29,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:23:29,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:23:29,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:23:29,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:23:29,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,596 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 631 [2022-12-13 11:23:29,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:23:29,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:23:29,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:23:29,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:23:29,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:23:29,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:23:29,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:23:29,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:23:29,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (1/1) ... [2022-12-13 11:23:29,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:23:29,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:23:29,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:23:29,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:23:29,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:23:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:23:29,854 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:23:29,857 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:23:34,892 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:23:34,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:23:34,899 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:23:34,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:34 BoogieIcfgContainer [2022-12-13 11:23:34,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:23:34,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:23:34,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:23:34,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:23:34,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:23:29" (1/3) ... [2022-12-13 11:23:34,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19837c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:23:34, skipping insertion in model container [2022-12-13 11:23:34,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:29" (2/3) ... [2022-12-13 11:23:34,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19837c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:23:34, skipping insertion in model container [2022-12-13 11:23:34,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:34" (3/3) ... [2022-12-13 11:23:34,909 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2001.c [2022-12-13 11:23:34,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:23:34,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:23:34,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:23:34,961 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24213499, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:23:34,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:23:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:34,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:23:34,968 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:23:34,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:23:34,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:23:34,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:23:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:23:34,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:23:34,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358421752] [2022-12-13 11:23:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:23:34,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:23:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:23:35,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:23:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:23:35,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:23:35,179 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:23:35,180 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:23:35,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:23:35,187 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:23:35,191 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:23:35,204 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 11:23:35,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:23:35 BoogieIcfgContainer [2022-12-13 11:23:35,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:23:35,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:23:35,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:23:35,212 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:23:35,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:34" (3/4) ... [2022-12-13 11:23:35,215 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:23:35,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:23:35,217 INFO L158 Benchmark]: Toolchain (without parser) took 5966.46ms. Allocated memory was 157.3MB in the beginning and 497.0MB in the end (delta: 339.7MB). Free memory was 126.8MB in the beginning and 342.4MB in the end (delta: -215.6MB). Peak memory consumption was 127.6MB. Max. memory is 16.1GB. [2022-12-13 11:23:35,217 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 157.3MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:23:35,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.07ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 101.5MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 11:23:35,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.46ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 94.3MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 11:23:35,219 INFO L158 Benchmark]: Boogie Preprocessor took 38.22ms. Allocated memory is still 157.3MB. Free memory was 94.3MB in the beginning and 90.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:23:35,219 INFO L158 Benchmark]: RCFGBuilder took 5265.59ms. Allocated memory was 157.3MB in the beginning and 497.0MB in the end (delta: 339.7MB). Free memory was 90.5MB in the beginning and 367.6MB in the end (delta: -277.1MB). Peak memory consumption was 274.9MB. Max. memory is 16.1GB. [2022-12-13 11:23:35,220 INFO L158 Benchmark]: TraceAbstraction took 307.97ms. Allocated memory is still 497.0MB. Free memory was 366.5MB in the beginning and 343.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 11:23:35,220 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 497.0MB. Free memory was 343.5MB in the beginning and 342.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:23:35,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 157.3MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.07ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 101.5MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.46ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 94.3MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.22ms. Allocated memory is still 157.3MB. Free memory was 94.3MB in the beginning and 90.5MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5265.59ms. Allocated memory was 157.3MB in the beginning and 497.0MB in the end (delta: 339.7MB). Free memory was 90.5MB in the beginning and 367.6MB in the end (delta: -277.1MB). Peak memory consumption was 274.9MB. Max. memory is 16.1GB. * TraceAbstraction took 307.97ms. Allocated memory is still 497.0MB. Free memory was 366.5MB in the beginning and 343.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 497.0MB. Free memory was 343.5MB in the beginning and 342.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 79, overapproximation of bitwiseAnd at line 84. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 3); [L29] const SORT_31 msb_SORT_31 = (SORT_31)1 << (3 - 1); [L31] const SORT_1 var_3 = 0; [L32] const SORT_1 var_9 = 1; [L33] const SORT_31 var_37 = 0; [L34] const SORT_31 var_226 = 1; [L36] SORT_1 input_2; [L38] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L40] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L41] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L42] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L43] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L44] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_31 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L49] SORT_31 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L50] SORT_31 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L51] SORT_31 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_31; [L53] SORT_1 init_5_arg_1 = var_3; [L54] state_4 = init_5_arg_1 [L55] SORT_1 init_14_arg_1 = var_9; [L56] state_13 = init_14_arg_1 [L57] SORT_1 init_16_arg_1 = var_3; [L58] state_15 = init_16_arg_1 [L59] SORT_1 init_18_arg_1 = var_3; [L60] state_17 = init_18_arg_1 [L61] SORT_1 init_20_arg_1 = var_3; [L62] state_19 = init_20_arg_1 [L63] SORT_1 init_22_arg_1 = var_3; [L64] state_21 = init_22_arg_1 [L65] SORT_1 init_24_arg_1 = var_3; [L66] state_23 = init_24_arg_1 [L67] SORT_1 init_26_arg_1 = var_3; [L68] state_25 = init_26_arg_1 [L69] SORT_1 init_28_arg_1 = var_3; [L70] state_27 = init_28_arg_1 [L71] SORT_1 init_30_arg_1 = var_9; [L72] state_29 = init_30_arg_1 VAL [init_14_arg_1=1, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=1, init_5_arg_1=0, mask_SORT_1=1, mask_SORT_31=7, msb_SORT_1=1, msb_SORT_31=4, state_13=1, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=1, state_32=0, state_33=0, state_34=0, state_35=0, state_4=0, var_226=1, var_3=0, var_37=0, var_9=1] [L75] input_2 = __VERIFIER_nondet_uchar() [L78] SORT_1 var_6_arg_0 = state_4; [L79] SORT_1 var_6 = ~var_6_arg_0; [L80] SORT_1 var_10_arg_0 = var_6; [L81] SORT_1 var_10 = ~var_10_arg_0; [L82] SORT_1 var_11_arg_0 = var_9; [L83] SORT_1 var_11_arg_1 = var_10; [L84] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L85] var_11 = var_11 & mask_SORT_1 [L86] SORT_1 bad_12_arg_0 = var_11; [L87] CALL __VERIFIER_assert(!(bad_12_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 11:23:35,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:23:36,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:23:36,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:23:36,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:23:36,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:23:36,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:23:36,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:23:36,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:23:36,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:23:36,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:23:36,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:23:36,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:23:36,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:23:36,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:23:36,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:23:36,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:23:36,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:23:36,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:23:36,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:23:36,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:23:36,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:23:36,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:23:36,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:23:36,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:23:36,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:23:36,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:23:36,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:23:36,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:23:36,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:23:36,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:23:36,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:23:36,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:23:36,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:23:36,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:23:36,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:23:36,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:23:36,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:23:36,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:23:36,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:23:36,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:23:36,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:23:36,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 11:23:36,981 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:23:36,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:23:36,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:23:36,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:23:36,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:23:36,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:23:36,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:23:36,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:23:36,984 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:23:36,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:23:36,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:23:36,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:23:36,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:23:36,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:23:36,985 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:23:36,985 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:23:36,985 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:23:36,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:23:36,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:23:36,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:23:36,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:23:36,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:23:36,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:23:36,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:23:36,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:23:36,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:23:36,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:23:36,987 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:23:36,988 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:23:36,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:23:36,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:23:36,988 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:23:36,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:23:36,988 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:23:36,989 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:23:36,989 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30c8d3298019488dcd7196bee2bc8b40464790a0108d12e9fe9926ac2a94dbfd [2022-12-13 11:23:37,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:23:37,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:23:37,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:23:37,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:23:37,213 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:23:37,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-12-13 11:23:39,789 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:23:39,990 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:23:39,990 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c [2022-12-13 11:23:39,999 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data/2fd74a5d8/1028692cb096446f881bb68109381a81/FLAG70c462396 [2022-12-13 11:23:40,348 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/data/2fd74a5d8/1028692cb096446f881bb68109381a81 [2022-12-13 11:23:40,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:23:40,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:23:40,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:23:40,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:23:40,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:23:40,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102a3df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40, skipping insertion in model container [2022-12-13 11:23:40,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:23:40,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:23:40,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-12-13 11:23:40,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:23:40,626 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:23:40,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2001.c[1107,1120] [2022-12-13 11:23:40,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:23:40,703 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:23:40,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40 WrapperNode [2022-12-13 11:23:40,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:23:40,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:23:40,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:23:40,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:23:40,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,765 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 631 [2022-12-13 11:23:40,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:23:40,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:23:40,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:23:40,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:23:40,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:23:40,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:23:40,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:23:40,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:23:40,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (1/1) ... [2022-12-13 11:23:40,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:23:40,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:23:40,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:23:40,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:23:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:23:40,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:23:41,050 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:23:41,051 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:23:41,459 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:23:41,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:23:41,464 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:23:41,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:41 BoogieIcfgContainer [2022-12-13 11:23:41,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:23:41,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:23:41,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:23:41,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:23:41,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:23:40" (1/3) ... [2022-12-13 11:23:41,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7600193e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:23:41, skipping insertion in model container [2022-12-13 11:23:41,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:23:40" (2/3) ... [2022-12-13 11:23:41,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7600193e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:23:41, skipping insertion in model container [2022-12-13 11:23:41,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:23:41" (3/3) ... [2022-12-13 11:23:41,472 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2001.c [2022-12-13 11:23:41,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:23:41,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:23:41,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:23:41,522 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66f3f0d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:23:41,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:23:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:41,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:23:41,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:23:41,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:23:41,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:23:41,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:23:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:23:41,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:23:41,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412633315] [2022-12-13 11:23:41,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:23:41,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:23:41,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:23:41,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:23:41,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 11:23:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:41,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 11:23:41,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:23:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:23:41,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:23:41,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:23:41,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412633315] [2022-12-13 11:23:41,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412633315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:23:41,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:23:41,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:23:41,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400779424] [2022-12-13 11:23:41,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:23:41,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:23:41,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:23:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:23:41,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:23:41,758 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:23:41,847 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 11:23:41,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:23:41,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-13 11:23:41,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:23:41,855 INFO L225 Difference]: With dead ends: 20 [2022-12-13 11:23:41,855 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 11:23:41,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:23:41,859 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:23:41,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:23:41,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 11:23:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 11:23:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 11:23:41,880 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 11:23:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:23:41,880 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 11:23:41,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 11:23:41,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 11:23:41,881 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:23:41,881 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 11:23:41,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:23:42,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:23:42,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:23:42,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:23:42,085 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 11:23:42,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:23:42,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402361923] [2022-12-13 11:23:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:23:42,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:23:42,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:23:42,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:23:42,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 11:23:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:23:42,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-13 11:23:42,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:23:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:23:42,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:23:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:23:42,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:23:42,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402361923] [2022-12-13 11:23:42,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402361923] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:23:42,778 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:23:42,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 11:23:42,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880547867] [2022-12-13 11:23:42,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:23:42,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:23:42,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:23:42,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:23:42,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:23:42,780 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:42,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:23:42,930 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 11:23:42,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:23:42,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-13 11:23:42,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:23:42,932 INFO L225 Difference]: With dead ends: 16 [2022-12-13 11:23:42,932 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:23:42,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:23:42,933 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:23:42,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:23:42,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:23:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-13 11:23:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 11:23:42,937 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-13 11:23:42,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:23:42,938 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 11:23:42,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:42,938 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 11:23:42,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:23:42,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:23:42,939 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 11:23:42,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-13 11:23:43,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:23:43,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:23:43,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:23:43,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-13 11:23:43,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:23:43,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602152549] [2022-12-13 11:23:43,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:23:43,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:23:43,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:23:43,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:23:43,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 11:23:43,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:23:43,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:23:43,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 124 conjunts are in the unsatisfiable core [2022-12-13 11:23:43,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:23:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:23:44,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:23:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:23:45,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:23:45,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602152549] [2022-12-13 11:23:45,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602152549] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:23:45,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:23:45,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 11:23:45,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735437428] [2022-12-13 11:23:45,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:23:45,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:23:45,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:23:45,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:23:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:23:45,972 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:46,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:23:46,264 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-13 11:23:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:23:46,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-13 11:23:46,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:23:46,265 INFO L225 Difference]: With dead ends: 19 [2022-12-13 11:23:46,266 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 11:23:46,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:23:46,267 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:23:46,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:23:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 11:23:46,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 11:23:46,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:46,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 11:23:46,271 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-13 11:23:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:23:46,271 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 11:23:46,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:23:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 11:23:46,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 11:23:46,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:23:46,272 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-13 11:23:46,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 11:23:46,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:23:46,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:23:46,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:23:46,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-13 11:23:46,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:23:46,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124267820] [2022-12-13 11:23:46,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:23:46,481 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:23:46,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:23:46,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:23:46,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 11:23:47,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 11:23:47,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:23:47,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 230 conjunts are in the unsatisfiable core [2022-12-13 11:23:47,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:24:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:24:13,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:24:25,948 WARN L233 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 445 DAG size of output: 428 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:24:47,437 WARN L233 SmtUtils]: Spent 13.24s on a formula simplification that was a NOOP. DAG size: 646 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:24:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:24:48,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:24:48,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124267820] [2022-12-13 11:24:48,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124267820] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:24:48,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:24:48,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-12-13 11:24:48,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507364582] [2022-12-13 11:24:48,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:24:48,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 11:24:48,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:24:48,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 11:24:48,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=195, Unknown=5, NotChecked=0, Total=240 [2022-12-13 11:24:48,199 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:25:09,167 WARN L233 SmtUtils]: Spent 19.95s on a formula simplification. DAG size of input: 591 DAG size of output: 390 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:25:31,104 WARN L233 SmtUtils]: Spent 18.22s on a formula simplification. DAG size of input: 598 DAG size of output: 392 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:25:33,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 11:25:35,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 11:25:37,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 11:25:46,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:25:48,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:25:50,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:25:51,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:25:54,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:25:56,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:25:58,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:26:00,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:26:12,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:26:28,312 WARN L233 SmtUtils]: Spent 9.45s on a formula simplification. DAG size of input: 636 DAG size of output: 387 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:26:34,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-12-13 11:26:41,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 11:26:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:26:42,228 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-12-13 11:26:42,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 11:26:42,233 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 11:26:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:26:42,233 INFO L225 Difference]: With dead ends: 22 [2022-12-13 11:26:42,233 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 11:26:42,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 139.3s TimeCoverageRelationStatistics Valid=122, Invalid=372, Unknown=12, NotChecked=0, Total=506 [2022-12-13 11:26:42,234 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:26:42,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 40 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 13 Unknown, 0 Unchecked, 31.9s Time] [2022-12-13 11:26:42,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 11:26:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-13 11:26:42,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-12-13 11:26:42,242 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-12-13 11:26:42,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:26:42,242 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-12-13 11:26:42,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:26:42,243 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-12-13 11:26:42,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 11:26:42,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:26:42,243 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-12-13 11:26:42,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 11:26:42,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:26:42,444 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:26:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:26:42,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-12-13 11:26:42,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:26:42,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971892776] [2022-12-13 11:26:42,451 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 11:26:42,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:26:42,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:26:42,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:26:42,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 11:26:42,878 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 11:26:42,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:26:42,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 2260 conjuncts, 407 conjunts are in the unsatisfiable core [2022-12-13 11:26:42,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:26:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:26:45,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:29:12,979 WARN L233 SmtUtils]: Spent 2.24m on a formula simplification. DAG size of input: 986 DAG size of output: 490 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:32:06,585 WARN L233 SmtUtils]: Spent 2.76m on a formula simplification. DAG size of input: 1017 DAG size of output: 668 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:32:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:32:06,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:32:06,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971892776] [2022-12-13 11:32:06,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971892776] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:32:06,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:32:06,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-12-13 11:32:06,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143628358] [2022-12-13 11:32:06,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:32:06,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 11:32:06,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:32:06,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 11:32:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=132, Unknown=1, NotChecked=0, Total=182 [2022-12-13 11:32:06,930 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:32:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:32:07,982 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2022-12-13 11:32:07,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 11:32:07,982 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-13 11:32:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:32:07,982 INFO L225 Difference]: With dead ends: 25 [2022-12-13 11:32:07,982 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 11:32:07,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 307.4s TimeCoverageRelationStatistics Valid=97, Invalid=244, Unknown=1, NotChecked=0, Total=342 [2022-12-13 11:32:07,983 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:32:07,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 34 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:32:07,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 11:32:07,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-12-13 11:32:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:32:07,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-12-13 11:32:07,996 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 17 [2022-12-13 11:32:07,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:32:07,996 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-12-13 11:32:07,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:32:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-12-13 11:32:07,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 11:32:07,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:32:07,997 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2022-12-13 11:32:08,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 11:32:08,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:32:08,198 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:32:08,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:32:08,200 INFO L85 PathProgramCache]: Analyzing trace with hash -826954269, now seen corresponding path program 5 times [2022-12-13 11:32:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:32:08,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926648854] [2022-12-13 11:32:08,206 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 11:32:08,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:32:08,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:32:08,209 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:32:08,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13759f73-6853-4b69-a635-dab3fcac25d6/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 11:32:08,992 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-12-13 11:32:08,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:32:09,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 2813 conjuncts, 485 conjunts are in the unsatisfiable core [2022-12-13 11:32:09,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:33:04,422 WARN L233 SmtUtils]: Spent 42.94s on a formula simplification. DAG size of input: 343 DAG size of output: 319 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:33:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:33:20,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:33:40,813 WARN L233 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 616 DAG size of output: 499 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:34:33,148 WARN L233 SmtUtils]: Spent 27.92s on a formula simplification. DAG size of input: 1059 DAG size of output: 854 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:34:59,370 WARN L233 SmtUtils]: Spent 23.69s on a formula simplification. DAG size of input: 851 DAG size of output: 847 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:35:19,026 WARN L233 SmtUtils]: Spent 13.36s on a formula simplification. DAG size of input: 854 DAG size of output: 852 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)